[PULL v2 00/19] Fixes (including big i386/emulate performance improvement) for 11.0-rc

[PULL v2 00/19] Fixes (including big i386/emulate performance improvement) for 11.0-rc

[Paolo Bonzini]

The following changes since commit 007b29752ed06e467d3c830bc2c17a8851f8bcd3:

  Merge tag 'for-upstream' of https://gitlab.com/kmwolf/qemu into staging (2026-03-25 09:16:13 +0000)

are available in the Git repository at:

  https://gitlab.com/bonzini/qemu.git tags/for-upstream

for you to fetch changes up to ba41e525413906473ed004b3a45f565783f3533f:

  target/i386: emulate: follow priv_check_exempt (2026-03-25 18:22:27 +0100)

----------------------------------------------------------------
* tests/functional: preserve PYTHONPATH entries
* target/i386: show GMET feature
* target/i386/emulate, whpx/i386: on-demand access to runtime state, MMU fixes
* tdx: fix use-after-free in tdx_fetch_cpuid
* treewide: replace qemu_hw_version() with QEMU_HW_VERSION
* sb16: detect invalid migration stream

----------------------------------------------------------------
Alyssa Ross (1):
      tests/functional: preserve PYTHONPATH entries

Jenny Guanni Qu (1):
      hw/audio/sb16: validate VMState fields in post_load

Mohamed Mediouni (14):
      whpx: i386: workaround for Windows 10 support
      whpx: i386: enable exceptions VM exit only when needed
      whpx: i386: skip TSC read for MMIO exits
      whpx: i386: skip XCRs read for MMIO exits
      whpx: i386: don't restore segment registers after MMIO handling
      target/i386: emulate: add new callbacks
      whpx: i386: add implementation of new x86_emul_ops
      target/i386: emulate: indirect access to CRs
      whpx: i386: indirect access to CRs
      target/i386: emulate: segmentation rework
      whpx: i386: fetch segments on-demand
      whpx: i386: fast runtime state reads
      target/i386: emulate: set PG_ERROR_W_MASK as expected
      target/i386: emulate: follow priv_check_exempt

Paolo Bonzini (3):
      tdx: fix use-after-free in tdx_fetch_cpuid
      treewide: replace qemu_hw_version() with QEMU_HW_VERSION
      target/i386: expose AMD GMET feature

 include/hw/core/boards.h          |   6 -
 include/qemu/hw-version.h         |  18 +--
 target/i386/emulate/x86_emu.h     |   6 +
 hw/audio/sb16.c                   |   7 +
 hw/ide/core.c                     |   2 +-
 hw/scsi/megasas.c                 |   2 +-
 hw/scsi/scsi-bus.c                |   2 +-
 hw/scsi/scsi-disk.c               |   2 +-
 system/vl.c                       |   4 -
 target/i386/cpu.c                 |   2 +-
 target/i386/emulate/x86_helpers.c |  83 ++++++-----
 target/i386/emulate/x86_mmu.c     |  27 ++--
 target/i386/hvf/x86.c             |  11 ++
 target/i386/kvm/tdx.c             |   2 +-
 target/i386/whpx/whpx-all.c       | 284 ++++++++++++++++++++++++++++++++------
 target/s390x/cpu_models.c         |   2 +-
 util/osdep.c                      |  12 --
 tests/functional/meson.build      |  12 +-
 18 files changed, 343 insertions(+), 141 deletions(-)
-- 
2.53.0

[PULL 01/19] tests/functional: preserve PYTHONPATH entries

[Paolo Bonzini]

From: Alyssa Ross <hi@alyssa.is>

Otherwise, it's not possible to use a packaged qemu.qmp.

Fixes: 1497377857 ("tests/functional: Prepare the meson build system for the functional tests")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Link: https://lore.kernel.org/r/20260323084739.1013748-1-hi@alyssa.is
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 tests/functional/meson.build | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/tests/functional/meson.build b/tests/functional/meson.build
index 3b42299e7ce..c158197c4b7 100644
--- a/tests/functional/meson.build
+++ b/tests/functional/meson.build
@@ -76,8 +76,10 @@ foreach speed : ['quick', 'thorough']
     endif
     test_env.set('QEMU_TEST_QEMU_BINARY', test_emulator.full_path())
     test_env.set('MESON_BUILD_ROOT', meson.project_build_root())
-    test_env.set('PYTHONPATH', meson.project_source_root() / 'python:' +
-                               meson.current_source_dir())
+    test_env.prepend('PYTHONPATH',
+                     meson.project_source_root() / 'python',
+                     meson.current_source_dir(),
+                     separator : ':')
 
     # Define the GDB environment variable if gdb is available.
     gdb = get_option('gdb')
@@ -97,8 +99,10 @@ foreach speed : ['quick', 'thorough']
       test_precache_env = environment()
       test_precache_env.set('QEMU_TEST_PRECACHE', meson.current_build_dir() / teststamp)
       test_precache_env.set('MESON_BUILD_ROOT', meson.project_build_root())
-      test_precache_env.set('PYTHONPATH', meson.project_source_root() / 'python:' +
-                                          meson.current_source_dir())
+      test_precache_env.prepend('PYTHONPATH',
+                                meson.project_source_root() / 'python',
+                                meson.current_source_dir(),
+                                separator : ':')
       precache = custom_target('func-precache-' + testname,
                                output: teststamp,
                                command: [python, testpath],
-- 
2.53.0

Re: [PULL v2 00/19] Fixes (including big i386/emulate performance improvement) for 11.0-rc

[Peter Maydell]

On Wed, 25 Mar 2026 at 17:24, Paolo Bonzini <pbonzini@redhat.com> wrote:
>
> The following changes since commit 007b29752ed06e467d3c830bc2c17a8851f8bcd3:
>
>   Merge tag 'for-upstream' of https://gitlab.com/kmwolf/qemu into staging (2026-03-25 09:16:13 +0000)
>
> are available in the Git repository at:
>
>   https://gitlab.com/bonzini/qemu.git tags/for-upstream
>
> for you to fetch changes up to ba41e525413906473ed004b3a45f565783f3533f:
>
>   target/i386: emulate: follow priv_check_exempt (2026-03-25 18:22:27 +0100)
>
> ----------------------------------------------------------------
> * tests/functional: preserve PYTHONPATH entries
> * target/i386: show GMET feature
> * target/i386/emulate, whpx/i386: on-demand access to runtime state, MMU fixes
> * tdx: fix use-after-free in tdx_fetch_cpuid
> * treewide: replace qemu_hw_version() with QEMU_HW_VERSION
> * sb16: detect invalid migration stream
>



Applied, thanks.

Please update the changelog at https://wiki.qemu.org/ChangeLog/11.0
for any user-visible changes.

-- PMM